| Tan Thaimat AS | Wholesale & retail | 2015 |
| Tan Thaimat Da | Wholesale & retail | 2011 |
| Tangerås Bolig AS | Real estate | 2026 |
| Tangerås Bygg AS | Construction | 2021 |
| Tangerås Holding AS | Real estate | 2019 |
| Tangerås Invest AS | Real estate | 2019 |
| Tannlege Anja Dyrkolbotnen AS | Health & social care | 2023 |
| Tannlege Erling Strømmen AS | Health & social care | 2024 |
| Tannlege Toini Thorkildsen AS | Health & social care | 2024 |
| Taste of Greece AS | Hospitality | 2019 |
| Taste of Greece Besf AS | Hospitality | 2026 |
| Taste of Greece Fjell AS | Hospitality | 2025 |
| Taste of Greece Sartor AS | Hospitality | 2026 |
| Taste of Greece Vibes AS | Hospitality | 2025 |
| Taubane Leitner Demaclenko AS | Construction | 2025 |
| Taubane Teknikk AS | Wholesale & retail | 1997 |
| TB Group AS | Administrative & support | 2018 |
| Tbi AS | Construction | 2007 |
| Tebe Interiør AS | Wholesale & retail | 1991 |
| Teltech AS | Construction | 2011 |
| Tendranett AS | Energy | 2017 |
| Tenzing AS | Financial services | 2005 |
| Teron AS | Real estate | 2006 |
| Tesdal Og Kjellevold AS | Professional & scientific | 2005 |
| Tesdal Transport AS | Transport & logistics | 2015 |
| The Integrated Human AS | Education | 2019 |
| Theedge Da | Education | 2008 |
| Thorsplassen AS | Real estate | 1997 |
| Tjommien AS | Health & social care | 2024 |
| Tjukkebygda Samdrift Da | Agriculture & fishing | 2002 |
| Tkm-Holding AS | Wholesale & retail | 2018 |
| TM Kapital AS | Financial services | 2018 |
| Tolaas Eigedom AS | Real estate | 2003 |
| Tomi Berg Holding AS | Administrative & support | 2011 |
| Tomk Music AS | Information & communication | 2014 |
| Torget Mat Og Vin AS | Hospitality | 2024 |
| Torgils Klette Bil AS | Other services | 1996 |
| Torsen Invest AS | | 2021 |
| Torstein Øvsthus & Sønner AS | Transport & logistics | 1977 |
| Totræna Invest AS | | 2023 |
| Toyota Voss AS | Wholesale & retail | 2022 |
| Tre Brør AS | Real estate | 2008 |
| Tre Brør Drift AS | Hospitality | 2026 |
| Tre Kokker Voss AS | Hospitality | 2000 |
| Trem AS | | 2022 |
| Trenova Holding AS | | 2025 |
| Trimrommet AS | Arts & recreation | 2014 |
| Trådsnello AS | Wholesale & retail | 2017 |
| Tråstølen Utvikling AS | Real estate | 2014 |
| Træen Samdrift Da | Agriculture & fishing | 2000 |
| Tunet Øystese AS | Real estate | 2018 |
| Tunge Ting AS | Manufacturing | 2011 |
| Turtveit Invest AS | Professional & scientific | 2021 |
| Tussi AS | Real estate | 2024 |
| Tverberg Eiendomsselskap AS | Administrative & support | 1989 |
| Tverberg Entreprenør AS | Construction | 2024 |
| Tverberg Holding AS | Wholesale & retail | 1989 |
| Tverbergsvegen SA | Real estate | 2016 |
| Tverrlidvegen SA | Real estate | 2024 |
| Tvi Eigedom AS | Real estate | 2009 |
| Tvi Holding AS | Financial services | 2005 |
| Tvilde Invest AS | Professional & scientific | 2008 |
| Tvilde Og Storheim Eigedom AS | Real estate | 2015 |
| Tvildemo Tech AS | Real estate | 2024 |
| Tvinde Maskin Og Transport AS | Construction | 2024 |
| Tyriveien 14 AS | Real estate | 2019 |
| Tyrlingen Hogst AS | Agriculture & fishing | 2025 |
| Tømmerdrift Ans | | 1990 |
| Tømrar Brynjulv Lie AS | Construction | 2015 |
| Tømrer Dagestad AS | Construction | 2015 |
| Uas Holding AS | | 2025 |
| Uas Voss AS | Professional & scientific | 2022 |
| Uas Voss Retail AS | Wholesale & retail | 2025 |
| Ull Og Silke AS | Wholesale & retail | 2026 |
| Undtun AS | Real estate | 2006 |
| Uni-Bygg AS | Construction | 2010 |
| Uni-Com AS | Professional & scientific | 2010 |
| Uni-Eiendom 2 AS | Real estate | 2011 |
| Unik Print Voss AS | Professional & scientific | 2017 |
| Upnir AS | Information & communication | 2025 |
| Urbanic Eiendom AS | Real estate | 2015 |
| Urbanic Næring AS | Real estate | 2016 |
| Ut Invest AS | Financial services | 2013 |
| Utleigesenteret AS | Administrative & support | 2021 |
| Uttrågata 20 AS | Real estate | 2021 |
| Uttrågata 23 AS | Real estate | 2024 |
| Uttrågata 26 AS | Real estate | 2023 |
| Uttrågata 42 AS | Real estate | 2012 |
| Uttrågata AS | Real estate | 2016 |
| Vaktmeisteren AS | Administrative & support | 2016 |
| Valborg K-G AS | Financial services | 2005 |
| Valmed Eigedom AS | Real estate | 2000 |
| Valsted Consult AS | Professional & scientific | 2020 |
| Valsted Holding AS | Professional & scientific | 2020 |
| Vangen Cafe AS | Hospitality | 2012 |
| Vangen Cafe Eigedom AS | Real estate | 2017 |
| Vangen Fysioterapi AS | Health & social care | 2020 |
| Vangen Vest AS | Real estate | 2019 |
| Vangsgata 10 AS | Real estate | 2006 |
| Vangsgata 33 AS | Real estate | 2016 |